ABB HT581466 Operation Manual page 57

Operation Manual / TPL67-C.. - TPL71-C..
5 Maintenance / 5.3 Cleaning the compressor during operation
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Push the valve activator (Y) against the spring and hold it for 10 ... 15
u
seconds until the entire volume of water has been injected.
After cleaning, wait at least 5 minutes to allow turbocharger to dry.
u
NOTICE
If the cleaning operation is not satisfactory, it may be repeated up to
two times.
If the cleaning result is still not satisfactory after three attempts and
the engine values are also unsatisfactory, we recommend that you have
the turbocharger inspected and cleaned by an official ABB Turbochar-
ging Service Station.
Cleaning parameters per turbocharger compressor
Product Engine load
TPL67-C + 71-C
Surging of the compressor stage
Should repeated surging of the compressor stage occur during com-
pressor cleaning, first the cleaning parameters as well as the engine-side
system must be checked with regard to deviations (e.g. an increased
pressure loss in the charge air cooler) and corrected if necessary.
If, despite correct settings, surging of the compressor stage occurs
while cleaning the compressor, as a remedial measure the engine load
can be reduced further while cleaning the compressor. The reduction of
the engine load can lead to a reduction in the effectiveness of the com-
pressor cleaning.
To avoid reduced engine availability, the cleaning of the compressor
u
stage at reduced engine load can be carried out during the drying
time following the wet cleaning of the turbine (see section Wet clean-
ing turbine and nozzle ring during operation).
HZTL2488_EN
Water temperat-
ure
[°C]
50 ... 85% 5 ... 50
Contents of wa-
ter vessel
3
[dm ]
0.4 or 1
Revision E August 2018